Hitachi V-209 Service Manual

MODEL V-209 
OSCILLOSCOPE 
------.._...__ -
OPERATION MANUAL 
~Hitachi Denshi. Ltd.  

,;--· --------·---------·---. ---. - ·--._- ----·---- -- ---1 
If WARRANTY ,f 
~ ~ 1 Th1s H1tach1 Ocnsh1. Ltd . product 1s warranted  against defects in workman -{ 
I { 
sh1p and materiah. 
If any failure. re~uhing from  a defect in e1ther  workman-, ship or matenal. ~hall uc..:ur un:ll!r uormal  use within  one year  from  the ~ 
J origmal  date ot purcha~c. such failure shall  be corrected  free of charge to the f 
1 ongmal purcha~e by repair  or. at I htachi  Denshis  sole option.  replacement of ~ ){...

CONTENTS 
Features  . .  . .  .  .  .  .  . .  .  .  .  .  .  .  .  .  .  .  .  ....... ... .. . ... ........ ..  . 
2.  Accessories  . .  . .  . . .  . .  .  .  .  .  . .  .  .  . . .  .  . . .  .  .  .  .  . . . .  . .  . .  .  .  .  .  . .  .  .  .  .  .  I 
3.  Precautions  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  .  .  . . . . . . . . . . . . . . . . .  2 
4.  Controls  and connectors  .  . . . . . . . .  . . .  . . . . . . .  . . .  . . .  . . .  . .  . .  . .  .  . .  6 
(I)  Power...

NOTE 
This  instrument  should be adjusted  at an  ambient  temperature  of +20°C 
for  best  overall  accuracy. 
Allow  at least  IS minutes  warmup  before proceeding. 
c  Polyvinyl  chloride (PVC) film is attached  on the  enclosure  and the front 
panel  of the  oscilloscope  to protect  the metal  surface.  If the  PVC  film is 
damaged  by  scratches,  remove it. 
To  clean  the enclosure  or the  front  panel,  use neutral  detergent.  Refrain 
from  using  thinner,  bent.me. alcohol or other...

1. 
FEATURES 
The  Hitachi  V-209  is a handy- type, advanced-class  oscillo­
scope  with a bandwidth  of DC  to 20  MHz  designed  with the 
emphasis  on operability  and portability  and has a following 
features. 
(I)  Wide  bandwidth: 
The  instrument  has a bandwidth  from DC to 20  MHz. 
(2)  High  sensitivity: 
Sensitivity  is I m  V /div 
(3)  3.5-inch  screen: 
Employment  of an  internal  graticule  CRT permits  the 
waveform  observation  to be  made  without  parallax  error. 
(4)  3-way...

3. 
PRECAUTIONS 
Precauuon�  to be  observed  to lengthen  the service  life of 
:hb  10 trument. 
In  tallation  site 
•  ,\  vo1d 
tnstalltng  mstrument  in an  extremely  hot or cold 
place. 
Avoid  placmg  this instrument  in a place  exposed  to sun­
light  for a long  period  of time,  in a closed  car in mid­
summer,  or near  a room  heating  device such as a stove. 
The  operatmg  maximum  ambient  temperature  is +50°C. 
•  Do  not  use mstrument  that has been  left outdoors  on a 
cold...

* 
Do  not  apply  a heavy  shock to the  oscilloscope. 
*  Do  not  insert  a wire,  pin, etc. through  the ventilation  hole. 
*  Do  not  drag  the set,  leaving  the probe  attached  to it. 
*  Do  not  leave  a hot  soldering  iron on the  cabinet  or the 
screen. 
*  Do  not  try to turn  the instrument  upside down. Otherwise, 
knobs  may  be broken. 
�b � 
*  Do  not  use the  instrument  upright, leaving BNC cable 
connected  to EXT  BLANKING  terminal on the  rear  panel. 
Otherwise,  the cable...

When 
not in U!>e 
When  not m  u:.e,  put the dust-proof  cover on the  mstrumcnt 
aud  store  11 with  care. 
When  Operation  is faulty 
Recheck  the operating  procedure  and if problem  persists. 
contact  a nearly  service  station or agent. 
Care  and repair 
Removal  of stam  from the case. 
When  the outs1de  of the  case  is stained.  remove the stain 
hy  first  wiping  11 lightly  with a cloth  moistened  v. ith 
neutral  washmg  agent and then  w1pe  the surface  w1th a 
dry  cloth. 
•...

washing 
agent and then  leave  them  stand  until the moisture 
is  removed  naturally. 
o  If the  screen  is installed  while it is moistened,  water 
rings  may be formed  and the wavefom1  may be blurred 
to  make  observation  hard. Pay attention  not to leave 
finger  prints  on it. 
To  dismount  it, pull  it toward 
you  pressing  it at  the  both 
ends. 
Operation  precautions  Bcz:el 
*  Che ck  the  line  voltage  is in  the  range  specified  in the  table 
below. 
Rating  Allowable line...

6 V-209 
Grounded 
line 
Other  in�trument  Common 
external 
DC  power  source 
<  DANGEROUS  CONNECT> 
*  Do  not  apply  revere polarities  to EXT  DC  IN. 
•  Do  not mcreasc  the bnghtness  too much.  Your eyes rna) be 
steamed  and the nuorescent  surface of CRT  may be burnt. 
•  Do  not apply  an excel;sive  voltage. 
The  maximum  volt3ge of each  input  is as  follows. 
PUT  direct  250V (DC+  peak AC 3t I kilt.) 
When  xI 0 Probe  is used  250V (DC+peak  AC at I kilt.) 
E  T  TRIG  INPUT  250V...